Sometimes a good deed isn't great for the person you're doing it for.
A friend of ours found a woman's iPhone and went through her contacts so she could find a way to return it. She managed to get in contact with the woman's husband who was happy the phone had been found and agreed to meet a short distance away to pick it up.
Only problem: Our friend, in going through the phone to find info for return, discovered the woman was having an affair! She freaked out and was asking my wife what to do. She didn't want to give the phone to the husband but had already agreed.
Apparently there was quite a bit of evidence of the affair on the phone too. Yeah, she was probably snooping a bit too.
We don't know what ever happened but the phone was returned.